241 



ingly, ash ri'prc'sciUs cliii'tl}- mineral contamination (shell fragments, salt, etc.), while 

 protein represents animal remains. 



TABLE No. .S2 



ANALYSES OF WOOD AND BORINGS. SERIES I. 

 .^s found. All figures in percentages of air-dried material. 



^Contains much NaCl. 



♦♦Excluded from average. 



TABLE No. .S3 



ANALYSES OF WOOD AND BORINGS. SERIp:S II. 

 As found. All figures in percentages of air-dried material. 



Determination 



Moisture 



Ash 



Nitrogen 



Protein (N x 6.25) 



Benzene extract 



Sugars in alcohol extract 



Hemicelluloses 



(as dextrose) 



Cellulose 



Lignin 



Furfural yield 



Original Wood 



8.47 

 6.90 

 0.14 

 0.87 

 0.46 

 0,39 

 nil 



11,08 

 11,76 

 39.44 

 23.63 

 4.93 



8.65 

 7.08 



0.39 1 

 0.36 / 

 nil 



12.64 



12.08 



39.87 



22.91 



Average 



8.56 

 6.99 

 14 

 0.87 



0.40 



nil 



11,87 



39.66 



23.27 



4.93 



Borings 



Individual 



7.49 

 18.83 

 0.70 

 4.38 

 40 

 38 

 nil 



8.44 



14.12 



38.16 



5.80 



7.15 

 18.87 

 0.72 

 4.50 

 42 

 47 

 nil 



8.48 



15.79 



37.71 



Average 



7.32 

 18.85 



71 

 44 



0.42 



nil 



8,46 



14 95 



37,93 

 5.80 



The analytical figures for the respective wood samples and their corresponding 

 borings are not directly comparable with one another, since they are mixed with 

 different amounts of non-woody material. In order to bring them to a common 

 basis, the data have been recalculated to a moisture-free, ash-free and protein-free 

 basis. The results are given in table 34. 



The figures for benzene extract and alcohol extract appear to have no special 

 significance. The former represent resinous matter, the latter tannins, coloring matter, 

 and soluble sugars. None of these except the soluble sugars can be regarded as having 

 any nutritive value for animals. The analyses show that extremely small amounts of 

 soluble sugars are present even in the original wood. Accordingly, neither benzene 

 soluble nor alcohol soluble constituents have been considered in the recalculations. 



